Finding the Fourth Proportional to 88,756,321.20, 133,134,481.80 and 85,355,098.80
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Solution
The fourth proportional to 88,756,321.20, 133,134,481.80 and 85,355,098.80 is: 128,032,648.20
Step by Step Solution
- Step 1: Write the proportion equation
88,756,321.20 : 133,134,481.80 = 85,355,098.80 : x - Step 2: Convert to fraction form
88,756,321.20/133,134,481.80 = 85,355,098.80/x - Step 3: Cross multiply
88,756,321.20x = 133,134,481.80 × 85,355,098.80 - Step 4: Simplify right side
88,756,321.20x = 11,363,706,847,725,802 - Step 5: Solve for x
x = 11,363,706,847,725,802/88,756,321.20 - Step 6: Final answer
x = 128,032,648.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.